Patents by Inventor Kyosuke Fujikawa

Kyosuke Fujikawa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Prosthetic ligaments and instruments for use in the surgical replacement of ligaments
    Patent number: 4997434
    Abstract: This invention relates to a new prosthetic ligament and a set of surgical instruments for use in the surgical replacement of a ligament and in particular for inserting a prosthetic ligament into the body.The ligament in accordance with the invention comprises an elongate foraminous flexible strip, having at one end a pouch portion capable of receiving a bone plug and including an opening through which the bone plug may be inserted into the end portion, the pouch portion also including a closure or the like to prevent escape of the bone plug in a direction away from the center of the ligament.The set of surgical instruments includes a new bone plug extractor which is adapted to sever the base of the bone plug from a host bone to allow complete separation of the bone plug.
    Type: Grant
    Filed: February 1, 1989
    Date of Patent: March 5, 1991
    Inventors: Bahaa B. Seedhom, Kyosuke Fujikawa
  • Surgical replacement of ligaments
    Patent number: 4775380
    Abstract: A prosthetic ligament for implantation between at least two bones and which takes the form of a tubular body made of woven flexible material through which tissue ingrowth can take place after implantation. A cord is attached to one end of the ligament to thread and to pull the ligament through channels formed in the bones, and a protective detachable sheath is attached to the ligament in order to facilitate the implantation of the ligament as it is pulled through the channels, the sheath immediately thereafter being detached. A bone plug introducer is used to insert a bone plug into one end of the ligament within the bone tunnel, which thereby secures the ligament end in position.
    Type: Grant
    Filed: October 16, 1986
    Date of Patent: October 4, 1988
    Inventors: Bahaa B. Seedhom, Kyosuke Fujikawa
  • Prosthetic ligaments and instruments for use in the surgical replacement of ligaments
    Patent number: 4668233
    Abstract: This invention relates to a new prosthetic ligament and a set of surgical instruments for use in the surgical replacement of a ligament and in particular for inserting a prosthetic ligament into the body.The ligament in accordance with the invention comprises an elongate foraminous flexible strip, having at one end a pouch portion capable of receiving a bone plug and including an opening through which the bone plug may be inserted into the end portion, the pouch portion also including a closure or the like to prevent escape of the bone plug in a direction away from the center of the ligament.The set of surgical instruments includes a new bone plug extractor which is adapted to sever the base of the bone plug from a host bone to allow complete separation of the bone plug.
    Type: Grant
    Filed: July 9, 1984
    Date of Patent: May 26, 1987
    Inventors: Bahaa B. Seedhom, Kyosuke Fujikawa